Auxiliary rotor for tiller gear casings



Feb. 19, 1952 c. w. KELSEY AUXILIARY ROTOR FOR TILLER GEAR CASINGS Filed Sept. 12. 1947 2 SHEETSSHEET l 1121 vENmR L'ADWALLAU R WKELEEY,

Feb. 19, 1952 c. w. KELSEY 2,586,

AUXILIARY ROTOR F OR TILLER GEAR CASINGS Filed Sept. 12, 1947 2 SHEETS-SHEET 2 fivv NTnR:

ZI'ADWALLAUE M KELSE'Y;

15 T2171? B'Y.

Patented Feb. 19, 1952 .11. :3:

AUXILIARY ROTOR FOR TILLER GEAR CASINGS Cadwallader W. Kelsey, Troy, N. Y. Application September 12, 1947, Serial No. 773,633

2 Claims. (Cl. 97-40) My invention relates to rotary soil working apparatus and particularly to improvements in the device disclosed in my U. S. Letters Patent No. 2,366,626.

In soil working machines of the rotary type,

there is a horizontal driven shaft which extends transversely of the machine on each side of central casing or housing is, nevertheless, re-

quired for the driving mechanism. Soil working tools are attached to the driven shaft at each side of the central housing and function to break up and pulverize the soil with which they come in contact. In order to work the soil in that zone or strip over which the central drive housing passes, the tools immediately adjacent the housing have sometimes been bent toward and partly over the housing so that at least a portion of the soil under each side of the housing is worked by these tools. However, since there must be a housing for a propeller shaft, chain, or other mechanism which connects the driven shaft with the source of power, there always remains some portion of the soil over which the center of the machine passes which cannot be worked by the tools attached to the transversely-extending driven shaft.

In order to overcome this objection I proposed, in my letters patent aforesaid, to provide a single, centrally-disposed tool, somewhat analogous to a drill, which is rotatably mounted on the drive housing for the soil working tools and which is driven by gears or other means from the transversely-extending driven shaft. This drill-like tool functions very well except that its reaction with the soil tends to twist or turn the soil'working mechanism about the axis of the tool and, of course, in a direction opposite to that in which the tool rotates.

The principal object of my present invention is to provide a rotary soil working device having an improved means for working the soil passed over by the central portion of the device and which cannot be worked by tool's mounted on'the transversely-extending driven shaft, because they are and must be arranged in two groups substantially spaced from each other at each side of the mechanism which drives the shaft on which they are mounted. A further object is to provide an improved means of this character which, when in operation, will not tend l is the ground wheel on which the 'ing apparatus is carried; 2 is the motor; 3 is a 2 to twist the apparatus in either direction. A still further object is to till the soil between the hook-like tools mounted on the transversely driven shaft so that the bottom of the casing can fall into the tilled area between the hook-like tools and prevent the latter from being lifted out of the ground during operation. i

I accomplish these objects broadly by providing two oppositely rotating,drill-like tools which are disposed between the two main groups of tools aforesaid. v

In the drawings- 7 a Fig. 1 is a side elevation of a rotary soil working apparatus equipped with my invention;

'. Fig. 2 is a section of Fig. 1 in the plane 2-2 but showing only one of the two main groups of tools;

Fig. 3 is a'front view of the soilworking tools with certain portions broken away and certain portions in section; v

Fig. 4 is a section of Fig. 3 in the plane 4-4;

Fig. 5 is an end view of Fig. 3 with certain portions broken away and other portions in section through the axis of one of the drill-like tools;

,Fig. 6 is a view to an enlarged scale of the two drill-like tools shown in Figs. 1-5, inclusive, as projected on a planeperpendicular to the axes of the tools;

Fig. 7 is a fragmentary elevation view of a modified type of tool; and e Fig. 81s a side view of the 1.601 shown in Fig.7.

Referring to the drawingsoil worktransmission housing from which drivingshafts 4 and 5 (see Figs. 1, 2 and 3) extend toward the rear of the machine at each side of the ground wheel and from which said wheel is. driven by worm gearing (not shown) Referring particularly now .to Figs. 2 and 3, the shaft 5 has a clutch collar 6 which rotates therewith but is slidably mounted thereon to engage the clutch member 1 on bevel pinion 8 which is rotatably mounted in the housing 9 and meshes with the bevel gear I U. Secured to the shaft II of bevel gear I0 is a sprocket 12 which drives the sprocket I3 attached to the driven shaft M on which the main groups of soil working tools P5 are mounted through chain [6.

Secured to the shaft M at each side of th sprocket 13 by means of keys I! is a spiral gear, one of which is shown at iii in Figs. 3 and 5. Mounted in bearings, such as shown at H! and 20, in the housing 2| for the driving mechanism and on each side of the sprocket l3 are shafts 22 and 28, one of which is shown in Fig. 3 and the other of which is shown in Fig. 5. These shafts are downwardly and forwardly inclined, and splined thereto are spiral gears 24 and 25 which cooperate with the spiral gears aforesaid on shaft M. The set of spiral gears by which shaft 22 is driven are designed to drive shaft 22 in a counterclockwise direction as viewed from the lower end of said shaft,- and the cooperating spiralfgears which drive the'shaft' 23 are designed to turn said shaft in a clockwise direction when so viewed. Threaded to the lower end of each of the shafts 22 and 23, as shown at 26 in Fig.- are soi-l working tools 21 and 28. These tools, of course, rotate in opposite directions, as shown by the curved arrows in Fig. 6; the straightarrow2 6-indicating the direction inwhichtheapparatus moves over the ground.

In Figs. '7 and 8, I have shown a modifiedtype of tool which is provided with downwardly converging serrated edges 2 30am "3 l and "which is mypreferred type 'of tool.

*Imeachmase. the tool-comprises a flat; bladelikeportion, such asshown'at 32 in Fig; 6 and '33 Figs; 7 andB, and the blade-like p'ortlon of the one tool is attached to" its shaft so? that it is preferably at right angl'es to' the blade like portion "bi Y theioth'er tool.

It will be apparent from the foregoing that,

opposite directions, their reactions with the soil worked thereby are equal, opposite in direction, and the reroreare baI'8J1'iCed',S0 that there is no tendency td twist the soil working m'echanism in e'ither direction asis" the casewhere a single' ---'-tool is 'employed. Furthermore, since'the tools rotate in opposite directions, which are "away -'from,-'=instead of towards; each other on the advancingside"thereof,:any stones or other obstructions which are encountered 'thereby,'insteadof *beingxira'wn 'between 'the tools, are thrown "outwardly and away from between the tools and, *since' the iirill -like tools rotate in close-proximity -to =the=next adjacent tools whichare' connected sm'ce'tne tools 'on'the 'shaits 22 and -23 rotate into :the shaft 14, "the s'oil is thoroughl worked with respectto said casing that a furrow will be plowedof a" width greater than "the width of said casing and of a. depth sufiicient to permit said casing to enter said furrow thereby prevent- --=ing-the=casing=and tilling tools from being lifted out of the ground during operation.

2. In a rotary soil working device of the charactefidescribed, comprising a casing having a shaft transversely extending through the bottom thereof, a sprocket wheel mounted on said shaft within said casing and having a driving chain thereon connected toa driving mechanism cooper'atively' associated with -said' device; a'fs'piral gearsecured to the shaft on-each side'==-of 'the "sprocket wheel within the bottom of said-casing,

a downwardly inclined shaft extending through the casing on each-smear thesprocket wheel "and in "advance'thereof, a spiral gear-secured to each 'downwardlydnclined shaft within niecesing, saidlastnamed spiral gears respectively-being-meshed' with "said firstmamed-spiral gears on-eaoh' side of'said sprocketwheel', arotarydrilllike soil working toolsecuredto' thee'ndcream downwardly-inclined -'s'h'aft outside of-"said casing," a group of soil-working"tools-mouhted-"on each side of saidtranverse-shaftand-adapted to rota'te'therewith-to till the-'soil'bn'opposite sides "of's'aid drill-iiketools, said drill like toolsb'ei'ng adapted to rotate in opposite directions to hold the entiredevice' in alignment with 'Tespect'to the direction in which it-is being operated; said separate tools being so' constructed and arranged with respect 'tosaid'casing that a furrowwillbe plow'edof a' width greater than the width ofsaid casing and of a depth sunicie'nt to permit said "casing 'to enter said furrowther'eby' preventing the casing and tilling' tools'fron'i' 'being lifted'o'ut 'ofthe'ground during operation. 7

g 1 CADWALLADERW. KELSEY.

ERENC ES CITED "The following references are of 'recordinthe file of this patent:

UNITED STATES "PATEN TS "Number Name v *Date f 1,773,672 fGrim Aug. 19; 1930 2,366,626 Kelsey Jan 2; 1 945 FOREIGN PATENTS Number Country -Date 286,315 Germany Aug. 33-19-15 

